"There's a perception that we sit way more than any other culture out there — or even any culture throughout time...."

"Anthropologist David Raichlen at the University of Arizona says that is not accurate.... Raichlen studies modern hunter-gatherers called Hadza, in Tanzania. They live primarily off wild foods, such as tubers, honey and barbecued porcupines. And to acquire this food, there's no doubt they are active.... On average, Hadza adults spend about 75 minutes each day exercising, Raichlen says. That amount is way more than most Americans exercise.... But... [a] few years ago, Raichlen and colleagues... strapped heart-rate monitors onto nearly 50 Hadza adults for eight weeks and measured how often each day, they were just, well ... sitting around. The results shocked Raichlen. 'The Hadza are in resting postures about as much as we Americans are,' he says. 'It's about 10 hours a day.'"

From "To Fix That Pain In Your Back, You Might Have To Change The Way You Sit" (NPR)(arguing that back pain comes not from sitting to much but sitting the wrong way, with a C-curved spine).

ADDED: Barbecued porcupines! Do they skewer the meat on the animal's own quills?